áhyggjuefni

== Icelandic == === Etymology === From áhyggja +‎ efni. === Noun === áhyggjuefni n (genitive singular áhyggjuefnis, nominative plural áhyggjuefni) matter of concern ==== Declension ==== === Further reading === “áhyggjuefni” in the Dictionary of Modern Icelandic (in Icelandic) and ISLEX (in the Nordic languages)